CVE-2026-93748 – http-cache-semantics through 4.2.0 Cross-User Cache Disclosure via max-stale

​CVE ID :CVE-2026-93748

Published : Sept. 18, 2026, 5:51 p.m. | 37 minutes ago

Description :http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to retrieve cached responses belonging to other users. Attackers can request the same URL with a large max-stale value to obtain another user’s Set-Cookie session credentials from shared-cache entries that were deliberately zeroed for security reasons.

Severity: 8.7 | HIGH

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